private void _SendDataCompleted(IAsyncResult iar) { string message = iar.AsyncState as string; bool result = m_SendDataDelegate.EndInvoke(iar); if (null != SendingData) { if (result) { SendingData("Pengiriman Pesan [" + message + "] sukses "); } else { SendingData("Pengiriman Pesan [" + message + "] gagal"); } } }